A student is using legos to create a model of the chemical barium phosphate Ba3(PO4)2. Barium atoms are represented by green legos, phosphorus atoms by yellow legos and oxygen atoms by blue legos. What combination of legos should the student use to complete the model?

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

How many grams of mgbr2 are needed to produce 75g or metal?